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Published December 25, 2006 | public
Journal Article Open

Brownian noise in radiation-pressure-driven micromechanical oscillators

Abstract

The authors demonstrate Brownian-noise-limited operation of an optomechanical oscillator, wherein mechanical oscillations of a silica optical microcavity are sustained by means of radiation pressure. Using phase noise measurement above threshold, it has been shown that the short-term linewidth of mechanical oscillations is fundamentally broadened, limited by thermal equipartition of energy.

Additional Information

©2006 American Institute of Physics (Received 1 May 2006; accepted 21 November 2006; published online 27 December 2006) This work was supported by DARPA and the Caltech Lee Center.

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